Welt-forming device



A. W. LILJEBERG.

WELT FORMING DEVICE.

APPLICATION FILED JUNE 12. I919.

1 ,350,73 1 Patented Aug. 24, 1920.

ANTON W. LILJEBERG, OF MINNEAPOLIS, MINNESOTA.

WELT-FORMING DEVICE.

Specification of Letters Patent.

Patented An Application filed June 12, 1919. Serial No. 303,669.

10 all whom it may concern:

Be it known that I, AN'roN vV. LILJEBERG, a citizen of the United States, residing at Minneapolis, in the county of Hennepin and State of Minnesota, have invented certain new and useful Improvements in Welt- Forming Devices; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

My invention has for its object to provide an extremely simple and highly efficient welt-forming device; and, to this end, it consists of the novel devices and combinations of devices hereinafter described and defined in the claims.

It is now customary, among shoemakers doing repair work, to form by hand a piece of Welt, of the required form and thickness,

for each shoe as the same is repaired. This method of forming welt is slow and, at the same time, it is difficult to make the same true and also to make two pieces alike. By the use of my welt-forming device, which is intended to be secured to a shoemakers bench or other convenient support, a piece of welt that is true throughout its entire length and of the desired thickness may be very quickly made from a suitable piece of material cut to the proper width by simultaneously beveling and also splitting the same to secure the desired thickness.

In the accompanying drawings, which illustrate the invention, like characters indicate like parts throughout the several views.

Referring to the drawings 2- Figure 1 is a plan view of the invention secured to a bench;

Fig. 2 is a View partly inside elevation and partly in vertical section;

Fig. 3 is a rear elevation with some parts broken away; and

Fig. 1 is a detail view, principally in section, taken on the line 4-4 of'Fig. 1.

The numeral 5 indicates a base block having on its back a bracket 6, by which it is secured to a bench or other support X. The top ofthe base block 5 is upwardly extended at its back portion and supports thereon a bed plate 7 having a depending body portion secured by a screw to the back of said base block. Two knife holders 8, with the base block 5 and bed plate 7 extending therebetween, are independently secured, one to each side of said base block by upper and lower screws 9, which extend through vertical slots 10 formed in the knife holders with their heads arranged to impinge thereagainst. By turning the screws 9 into the base block 5, their heads may be made to impinge against the knife holder 8 and frictionally clamp the same onto said base block in different vertical adjustments. 0n the upper ends of the knife holders 8, are outwardly offset clamping heads 11, in the form of yieldingly connected upper and lower jaws which project rearward and are connected by nut-equipped bolts 12 by which the upper jaws may be drawn or sprung toward the lower jaws.

A splitting knife 13, which extends parallel to the bed plate 7, has its end portions secured in the clamping heals 11 for adjustment with the knife holders 8 to vary the distance between the splitting knife and bed plate. he shank of a beveling knife la is secured in the left-hand clamping head 11 under the respective end of the splitting knife 13 and holds said beveling knife below the splitting knife and forward of the bed plate 7. The length of the beveling knife l-i is such that the point thereof never extends above the bed plate 7 in the various adjust ments of the splitting knife 13. Secured in the right-hand clamping head 11 and under the respective end of the is a guide 15 frictionally held by said clamping head in different adjustments in respect to the beveling knife 14.

To simultaneously adjust the two knife holders 8, there is provided a horizontally disposed baillike hand piece 16, the prongs of which embrace the sides of the base block 5 and are intermediately pivoted thereto by screws 17. On the free ends of the prongs of the hand piece 16, are gear segments 18, which mesh with rack teeth 19 011 the front vertical edges of the knife holders 8. A horizontal guide 20 has, at its ends, arms pivoted at 21 to the base block 5 and which arms connect said guide to the base block for parallel swinging movement toward and from the cutting edge of the splitting knife 13.

The operation of the improved welt-preparing device may be briefly described as follows The screws 9 are first loosened and the hand piece 16 operated to vertically adjust the splitting knife 13, in respect to the bed plate 7, so as to reduce the material Y to the desired thickness. After the splitting splitting knife 13,

' knife 13 is properly adjusted, the screws 9 are again tightened to rigidly secure the splitting knife 13 the desired distance from the bed plate 7 to govern the thickness of the welt. The guide 15 is then adjusted the proper distance from the beveling knife 14 to hold the material Y in its proper relation to said beveling knife and againstedgcwise movement therefrom. \Vith the device properly adjusted, one end of the material Y is reduced by cutting to permit the material Y by cutting therefrom a waste strip Y It will thus be seen that a piece of welt Z, of the desired thickness and with the proper bevel, is very quickly and easily formed. The purpose of the guide 20 is to hold the material Y onto the bed plate 7, so-that the same cannot be transversely cut by the slitting knife 13. The movement of the material Y, as the same-is pulled over the bed plate 7, will hold the guide'QO in its proper relationto the splitting knife 13. As previously stated, the guide 15holds the material Y against edgewise movement from the oblique knife 14, so that the proper bevel By loosening the binding" is cut-thereon. screws12, the knives 18 and14 may be easlly removed from theknife holders, when it is necessary to sharpen the same.

What I claim is V 1. A welt forming device com'prislng a base block having abed plate, killfG'hOlClGIS movably mounted 'on the base block and having a pair of clamping heads, ;a splitting 'knife having its ends-supported by said clamping heads, a beveling knife carried by one of the clamping heads and extending between said pair of clamping heads,'.the cutting edge of the beveling knife being ofi' setfrom the bed plate, .andmeansfor adjusting sa-id knife holders to vary the distance between the splitting knife and the V 7 bed plates.

2. 'A welt-forming device comprising a in presence base block having a bed plate, knife holders movably mountedonithe base block and having clamping heads, a splitting knife and a 'beveling knife carried by said clamping heads, means for adjusting the knife holders to vary the distance between the splitting knife and the bed plate, and a guide pivoted to the base block for swinging movement toward and from the cutting edge of the splitting knife for holding the material onto the bed plate.

A welt-forming device comprising a base block having a bed plate, a pair of knife holders having clamping heads and also having slots, binding screws extending through said slots and having screw-threaded engagement with the base block for frictionally clamping the knifeholders thereon, and a splitting knife carried by said clamping heads.

1. A welt-forming device comprising a base block having a bed plate, knife holders movably mounted on the base block and having clamping heads, a splitting knife carried by said clamping heads, and means for simultaneously adjusting the knife holders to vary the distance between the splitting knife andthe bed plate.

5. A welt-forming device comprising a base blockhaving a bed plate, knife holders 7 movably mounted on the baseblock and having clamping heads, a splitting knife carried by said clamping heads, and a bail-like hand piece having its prongs intermediately pivoted'to the'base block and provided with gear segments "meshing with rack teeth on the knifeholders for adjusting the same to vary the distance between the splitting knife and base block. V 7

6. A welt-forming device comprising a base block having a bed plate, knife holders movably mounted on the base block and having clamping heads, asplitting knife and a beveling knife carried by said clamping heads, a guide adjustable toward and from the beveling knife, and meansfor adjusting the knife holdersto vary the distance between the splitting knife and the bed plate.

In testimony whereof I affix my signature of two witnesses.

ANTON 1V. LILJEBERG.

itnesseS: V

CLARA 1 DEMAREST,

HARRY D. Krneonn. 

